What color is #818198?

#818198 is a medium low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(129, 129, 152), and in HSL hsl(240, 10%, 55%).

Is #818198 accessible as text?

On white, #818198 has a contrast ratio of 3.80:1 (fails WCAG AA for body text); on black it is 5.53:1 (passes). For text placed on #818198, use black for the best readability.

What is the closest Tailwind color to #818198?

The nearest Tailwind CSS token is slate-500 (#62748E).

What colors go well with #818198?

As a neutral, #818198 pairs cleanly with either light or dark text depending on the surface, and sits under accent hues like blue, violet, emerald or warm orange — use it as a muted neutral, divider, icon or disabled-state color and let the accent carry the color.

Is #818198 the same as CSS lightslategray?

No — #818198 is not the CSS named color lightslategray, but lightslategray (#778899) is the closest CSS named color.

#818198 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #818198

Not just a swatch — here's how #818198 works with other colors. Named schemes with #818198 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #818198 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Light Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #818198 Secondary #AFB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Light Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #818198 Secondary #7E4533 Surface #EDD8C2 Accent #365247 Anchor #582238

Light Slate Gray plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Dominant #818198 Anchor #3B2923 Surface #F3E1D2 Accent #759F7C Secondary #3C3734

Light Slate Gray anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #818198 Secondary #ADADB6 Support #9D9088 Ink #18140F

Light Slate Gray is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Light Slate Gray carrying the quiet middle.

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Color Lab

How #818198 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 44/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 60/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 44/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 13/100

Very low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 57/100

Moderate

Workable accent with care around contrast.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 95/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #818198

For UI

For branding

For interior

For fashion

People also use #818198 with

Cadet Grey Light Slate Gray Pewter Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.9:1. Use

Subtle surface Use #E6E6EA for cards and hover fills. Tint 80

Avoid beside #888198 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #818198 at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #818198;
  --color-base-rgb: 129 129 152;
  --color-base-oklch: oklch(61.1% 0.035 285.3);
  --color-50: #F7F7F8;
  --color-100: #E8E8ED;
  --color-200: #D2D2DA;
  --color-300: #B1B1BE;
  --color-400: #9191A1;
  --color-500: #727283;
  --color-600: #5B5B67;
  --color-700: #43434B;
  --color-800: #2E2E33;
  --color-900: #1D1D20;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  light-slate-gray: {
    50: '#F7F7F8',
    100: '#E8E8ED',
    200: '#D2D2DA',
    300: '#B1B1BE',
    400: '#9191A1',
    500: '#727283',
    600: '#5B5B67',
    700: '#43434B',
    800: '#2E2E33',
    900: '#1D1D20',
  },
}

$base: #818198;
$base-ink: #141310;
$base-50: #F7F7F8;
$base-100: #E8E8ED;
$base-200: #D2D2DA;
$base-300: #B1B1BE;
$base-400: #9191A1;
$base-500: #727283;
$base-600: #5B5B67;
$base-700: #43434B;
$base-800: #2E2E33;
$base-900: #1D1D20;
$base-hover: #65657B;
$base-subtle: #DADADF;

{
    "color": {
        "base": {
            "value": "#818198",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#E8E8ED",
                "type": "color"
            },
            "200": {
                "value": "#D2D2DA",
                "type": "color"
            },
            "300": {
                "value": "#B1B1BE",
                "type": "color"
            },
            "400": {
                "value": "#9191A1",
                "type": "color"
            },
            "500": {
                "value": "#727283",
                "type": "color"
            },
            "600": {
                "value": "#5B5B67",
                "type": "color"
            },
            "700": {
                "value": "#43434B",
                "type": "color"
            },
            "800": {
                "value": "#2E2E33",
                "type": "color"
            },
            "900": {
                "value": "#1D1D20",
                "type": "color"
            }
        }
    }
}

Palettes built on #818198

Color Lab

Pairs with #818198

UI roles & guardrails

In real applications

Scales

Every model

Export